Jerusalem Underground: Secrets of an Ancient City

A new discovery links the City of David to the Temple Mount.

By

Eric Gibson

Updated Feb. 3, 2011 12:01 a.m. ET

Jerusalem

'Jerusalem is all about water," says Doron Spielman of the Ir David Foundation, which preserves and maintains the ancient biblical City of David. "If you can conserve, preserve the water, you can live here. And if not, you're in trouble."

We are standing 65 feet below ground in the City of David, located just outside the southern wall of Jerusalem's walled Old City, listening to the rush of water enter...